321.275 Operation of motorcycles and motorized bicycles.

a. Motorized bicycles. A person operating a motorized bicycle on the
highways shall not carry any other person on the vehicle.

b. Motorcycles. A person shall not operate or ride a motorcycle on
the highways with another person on the motorcycle unless the motorcycle
is designed to carry more than one person. The additional passenger may
ride upon the permanent and regular seat if designed for two persons, or
upon another seat firmly attached to the motorcycle at the rear of the operator.
The motorcycle shall be equipped with footrests for the passenger unless
the passenger is riding in a sidecar or enclosed cab. The motorcycle operator
shall not carry any person nor shall any other person ride in a position
that will interfere with the operation or control of the motorcycle or the
view of the operator.

3.Sitting position. A person operating a motorcycle or motorized
bicycle shall ride only upon the vehicle's permanent and regular attached
seat. Every person riding upon the vehicle shall be sitting astride the
seat, facing forward with one leg on either side of the vehicle.

4.Use of traffic lanes. Persons shall not operate motorcycles or
motorized bicycles more than two abreast in a single lane. Except for persons
operating such vehicles two abreast, a motor vehicle shall not be operated
in a manner depriving a motorcycle or motorized bicycle operator of the
full use of a lane. A motorcycle or motorized bicycle shall not be operated
between lanes of traffic or between adjacent lines or rows of vehicles.
The operator of a motorcycle or motorized bicycle shall not overtake and
pass in the same lane occupied by the vehicle being overtaken unless the
vehicle being overtaken is a motorcycle or motorized bicycle.

5.Headlights on. A person shall not operate a 1977 or later model
year motorcycle or any model year motorized bicycle upon the highways without
displaying at least one lighted headlamp of the type described in section
321.409. However, this subsection is subject to the exceptions with respect
to parked vehicles as provided in this chapter.

6.Packages. The operator of a motorcycle or motorized bicycle shall
not carry any package, bundle, or other article which prevents the operator
from keeping both hands on the handlebars.

7.Parades. The provisions of this section do not apply to motorcycles
or motorized bicycles when used in a parade authorized by proper permit
from local authorities.

8.Bicycle safety flags required on
motorized bicycles. When operated on a highway, a motorized
bicycle shall have a bicycle safety flag which extends not
less than five feet above the ground attached to the rear of
the motorized bicycle. The bicycle safety flag shall be
triangular in shape with an area of not less than thirty
square inches, and be Day-Glo in color.